Classification
140 - Specific philosophical schools
700 - The arts; fine & decorative arts
22
380 - Commerce, communications & transportation
15
610 - Medicine & health
15
000 - Computer science, information & general works
14
363 - Other social problems & services
13
600 - Technology
13
330 - Economics
12
900 - History & geography
12
333 - Economics of land & energy
11
620 - Engineering & allied operations
10
320 - Political science
9
581 - Specific topics in natural history
6
630 - Agriculture & related technologies
6
340 - Law
4
370 - Education
4
551 - Geology, hydrology & meteorology
4
612 - Human physiology
4
658 - General management
3
100 - Philosophy & psychology
2
200 - Religion
2
304 - Factors affecting social behavior
2
576 - Genetics & evolution
2
300 - Social sciences
1
350 - Public administration & military science
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
580 - Plants (Botany)
1
780 - Music
1
800 - Literature & rhetoric
1